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Summary form only given. Power devices and systems operating in partial vacuum are susceptible to partial discharges, corona, or volume discharge. In most cases, it is important to understand the characteristics of the discharge such as the space-charge distribution, the electron energy distribution, and collision processes in which the species are involved. Spectroscopic study of the discharge is...
In this paper, the breakdown characteristics of argon as a function of pressure from 0.1 torr to 4 torr, for kHz range applied fields are presented. A unipolar pulsed signal is applied to a point-plane electrode configuration. Three different frequencies, namely 20 kHz, 50 kHz, and 100 kHz with varying duty cycle from 10% to 90%, are used in the experiments to determine the duty cycle effects on the...
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